/*
 * Copyright (C) 2007 The Guava Authors
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.google.common.testing;

import static com.google.common.base.Preconditions.checkNotNull;

import com.google.common.annotations.GwtCompatible;

import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;

/**
 * Methods factored out so that they can be emulated differently in GWT.
 *
 * @author Chris Povirk
 */
@GwtCompatible(emulated = true)
final class Platform
{
    /**
     * Serializes and deserializes the specified object.
     */
    @SuppressWarnings("unchecked")
    static <T> T reserialize(T object)
    {
        checkNotNull(object);
        ByteArrayOutputStream bytes = new ByteArrayOutputStream();
        try
        {
            ObjectOutputStream out = new ObjectOutputStream(bytes);
            out.writeObject(object);
            ObjectInputStream in = new ObjectInputStream(new ByteArrayInputStream(bytes.toByteArray()));
            return (T) in.readObject();
        }
        catch (IOException | ClassNotFoundException e)
        {
            throw new RuntimeException(e);
        }
    }

    private Platform()
    {
    }
}
